OUTPUT TRANSFORMERS

15k/150+150 ohm output transformer for driving a balanced ohm line from single ended triode stage. 100% M6 core for high level capability, Can be configured for 5:1 or 10:1 ratio. Max output level at 30 Hz +26 dBu. Multiple interleaved winding sections. for high bandwidth. Max primary dc 30 mA. Total dc resistance ref secondary 76 ohms.
Size "D" Package options. Replacement for Chicago BO-1 in Fairchild 666. Suitable for Drip 666 board.

15k/600 ohm output transformer for driving a balanced ohm line from push-pull 6SN7, ECC83 etc. 70% Mumetal core for high bandwidth and dynamic range, Max output level at 50 Hz +23 dBu (11 volts). Total dc resistance ref secondary 39 ohms. 4% feedback winding with CT. Colour coded leads. Pro Audio Size J

5k/600 ohms output transformer for driving balanced line from ac coupled cathode follower. 70% Mumetal core for high bandwidth and dynamic range, Max output level at 50 Hz +23 dBu (11 volts). Total dc resistance ref secondary 39 ohms. Colour coded leads. 4% feedback winding with CT. Pro Audio size J

15k/150+150 ohm output transformer for driving a balanced ohm line from single ended triode or pentode stage. Very high primary inductance for driving from a valve with a high plate resistance (rp). 100% M6 core for high level capability, primary Inductance 100H. Can be configured for 5:1 or 10:1 ratio. Max output level at 30 Hz +26 dBu. Multiple interleaved winding sections. for high bandwidth. Max primary dc 15 mA. Total dc resistance ref secondary 131 ohms.
Size "D" Package options. Replacement for UTC A-25

15kCT/150+150 ohm output transformer for driving a balanced line from push-pull triodes. 100% M6 core for high level capability and low distortion. Twin secondaries for 600/150 ohm outputs. Voltage ratio 10CT:1+1 Max dc per side of primary 30 mA. Colour coded leads. Size A Supplied with end frames for vertical or horizontal mounting. Fully shrouded style "S" option.

15k/185 ohm output transformer for driving a balanced ohm line from push-pull 6SN7, ECC83 etc. 50% Mumetal core for high bandwidth and dynamic range, Max output level at 50 Hz +28 dBu (19 volts). Total dc resistance ref secondary 14 ohms. Colour coded leads. Mumetal can with threaded grommet 45 x 72 x 63 mm. Tested with Drip Electronics UA 175 and Altec 436 PCB.

10k/600 ohms single ended output transformer. 40 H primary. Up to 30 mA dc. Max output +24 dBu (12 volts). Total dc resistance ref secondary 96 ohms. Colour coded leads. Size D. M6 core.

100% Mumetal, high ratio low cost transformer for interfacing between Digital/Analogue Converter to tube amplifier. For use with a 100 ohm or less current to voltage conversion resistor. Can be configured ar 1:9 or 1:18 Mumetal can.

For interfacing from a single or pair of Digital/Analogue Converters to a tube amplifier. Twin bifilar winding for driving with true and inverted data to give cancellation of unwanted quantisation products. Connect primary windings in parallel for normal use with a single DAC. For use with a 100 ohm or higher current to voltage conversion resistor on each DAC. Ratio 1+1:5+5. Mumetal can.